Janney told Digital Spy that she will reprise her role for the upcoming second season, to air later in 2014.

"I know they're trying to work out the schedule right now," the actress - currently starring in sitcom Mom - revealed.

"We have about six more episodes to shoot of Mom for this first season and then I think Masters starts up right about when we finish."

Janney added that she is currently uncertain how many new Masters of Sex episodes she will appear in.

"I don't know how many episodes, 'cos I don't know what can happen with Margaret Scully at this point," she said. "But I know it was a great storyline to get to play and I'm sure that they're going to want to tie that off somehow."